esp-open-rtos/open_esplibs/libmain/xtensa_context.S

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#include "open_esplibs.h"
#if OPEN_LIBMAIN_XTENSA_CONTEXT
// The contents of this file are only built if OPEN_LIBMAIN_XTENSA_CONTEXT is set to true
.section .iram1.text, "ax", @progbits
.balign 4
.global sdk__xt_context_save
.type sdk__xt_context_save, @function
sdk__xt_context_save:
s32i a2, sp, 20
s32i a3, sp, 24
s32i a4, sp, 28
s32i a5, sp, 32
s32i a6, sp, 36
s32i a7, sp, 40
s32i a8, sp, 44
s32i a9, sp, 48
s32i a10, sp, 52
s32i a11, sp, 56
rsr a3, sar
s32i a3, sp, 76
ret
.balign 4
.global sdk__xt_context_restore
.type sdk__xt_context_restore, @function
sdk__xt_context_restore:
l32i a3, sp, 76
l32i a2, sp, 20
wsr a3, sar
l32i a3, sp, 24
l32i a4, sp, 28
l32i a5, sp, 32
l32i a6, sp, 36
l32i a7, sp, 40
l32i a8, sp, 44
l32i a9, sp, 48
l32i a10, sp, 52
l32i a11, sp, 56
l32i a12, sp, 60
l32i a13, sp, 64
ret
#endif /* OPEN_LIBMAIN_XTENSA_CONTEXT */